Paper-feed for front-strike type-writing machines.



FOX. PAPER FEED EOE FRONT STBIKB TYPE WRITING MACHINES. .AiPLIOATIQN FILED An. as; 1906. 912,660, Patented Feb. 16, 1909.

a sums-sum 1.

' W-itgessesf v llgvegtor w. R. FOX. I PAPER FEED FOR FRONT STRIKE TYPE WRITING MACHINES.

APPLICATION FILED APR. 23, 1906.

912,660. Patented Feb. 16, 1909.

fllllll fl l l l llllll m? w r-\ nu IHIIIIllillllhlltilllllllllilllllllllilfil/lllll WitQQSSQSZ lgvegtov,

Atfys 5} ml m f W. R. FOX. PAPER FEED FOR FRONT STRIKE TYPE WRITING MACHINES.

APPLIGATION FILED APR. 23. 1906.

Patented Feb. 16, 1909.

3 SHEETS-SHEET 3.

lljVCQtOII w various parts; Fig. isjas1rr'nlardeta1l.sec-

tional'view taken on th'ejllne of F1gs.- 2

UNITED STATES PATENT onrron.

WILLIAM R. FOX, OF GRAND RAPIDS, MICHIGAN.

PAPER-FEED FOR FRONT-STRIKE TYPE-WRITING MACHINES.

Specification 01 Letters Patent.

Patented Feb. 16, 1909.

Application filed. April 23, .1906. Serial No. 313,297.

paper feeds forfront strike ty fewriting.

machines.

The objects of this invention are, firstgto provide an improved construction and arrangement for supporting the feed rolls in relationto the typewriter platen. Second,

. to provide an improved arrangement and construction of paper table; Third/topm- 'vide an improved construction and arrangement of front paper finger for use in front strike ltypewriting machine. Fourth, to rovide improved means of adjusting .the gers of a paper holder or guide. Fifth, to

I provide an improved means of support for the paper scale for use in connection with the front strike typewriting machines. Sixth,

to provide an improved ratchet and brake mechanisrnfor the platen of a typewriter. I

Furtherobjects, and objects relating to detailsof construction Q definitely appea inthe detailed description to follow.

I accomplish the objects of my invention b the devices and means described and illiistrated in the following specification.

:The invention is clearly defined and pointed out in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawing,forming a part of this speclfication, in which:

Figure 1 is a plan view of the u of a typewriting machine, embo ymg my improved'feed mechanism; Fig. 2 is an inverted lan view of the parts appearin in Fig.1, s owing the arran ement and met 0d of support' the feed rol s on the under side; Fig. 3 a etail inverted plan view of the scale sup "o'rt, showing its formation and method 0 adjustment; Fig. 4 is a transverse detail-sectionalview taken onf line.4-4 of Fig. 1, showing generally the relation of'the and'3, showing the exact arraiigement and per part tail sectional view talren on line 66 of Fig; 2, showing the details of construction at that point, of the connection between the paper table guide and thescale; Fig. 7 is a detail sectional .view taken on line 7-7 of Fig. 6

showing details of connection between the paper table guides and scale; Fig. 8 is a detail sectional view taken on line 88 of Fig. 2, showing the arrangement of the spring for holding the paper feed rolls in position. Fig.

9 is a detail sectional view taken on line 99 of Fig. 2,; showing the details of construction at that point; Fig. ,10 is a detail sectional end elevation on line 10-10 of Figs. '1 ,and 2, showing. the ratchet and platen-brake mechanism.

In the drawing all the sectional views are taken looking in the direction of the little ar rows at the ends of the sectionlines, and similar letters of reference refer to similar parts throughout the several views.

Referring to the lettered parts of the drawing, .the mainframe of the machine A is of the usual Fox construction and provided with a top plate A which supports the carriage and its paper feeding mechanism.

B is the-carriage which is provided with a front bar 3, to which are adjustably secured the front paper fingers of the machine.

. These paper fin ers are adjust-ably arranged on the carriage y means of set screw K.

The front paper guides consist of suitable guide blocks K, which are fitted to suitable ways on the front bar B of the carriage, an

upper portion K having projections which engage to clamp on the top of the front bar B,'the two Iparts being clamped together by set screws therethrough; I

The aper fingers are made of spring metal. A portion L extends to the front of the machine, and is clamped in position on the block K by the set screw K; the same containing slots 1, which embrace the said set screws, the parts K of the guide blocks clamping the said sheet metal portions. so that they can be adjusted to and from the platen. This part is curvedupwardly thence toward the rear of the machine thence downwardly at the rear in U-shape at L, and extends downwardly into contact with the front portion of the platen G. The platen C is supported on the usual spindle 0 used in front strike machines. ,The'fingers arcad- 'us table-in the clamps so that the platencan lie readilyirernoved from the carriage.

paper table.

lar heads are connected by links Z to the front portion of the U part L of the fingers, and act upon the rear portion of the-loop so that when the said levers are thrown towardthe front of the machine, the paper fingers are out of en agement with the platen, as indi-' cated by t e dotted lines of Fig. 4. As many of these paper fingers are used as are required, two being ordinarily sufficient.

The paper table F is supported to the rear of the platen on the rock shaft D which is arallel therewith. Brackets f are on the hack of the paper table F which embrace the rock-shaft D arranged in the carriage, parallel therewith, which rock-shaft is provided with suitable bushings or sleeves d. The table is retained detachably in position by the spring fingers f, curved at their lower end, and embracing either the rock-shaft D or the bushing d thereon, The brackets f and bushings d are between set collars d on said rock-shaft .and prevents endwise. movement of the aper table. The collars can be adjusted endwise and in that way secure adjustment of the paper table and scale. The paper table .is extended at F beneath the platen is conformed thereto and forms the main papersupport. The same is open at proper intervals to permit the feed rolls 1 to come into contact with the under side of the platen, the

intermediate portions of the table beingmarked f, the broader parts F serving for the attachment of the scale.

upward against the under side of the platen by spring fingers E" carried by bar E below and to "the rear of the platen. '(See Fig. 4.) The sca-e H is supported at the front edge of this aper table. The scale is deflected outwar ly at H and connected by suitable screws it through enlarged holes to brackets H riveted to the front portion F of the said The paper scale a single space below the printing line. This scale because it is conformed and supported inthis way, does not interfere with the type or ribbon vibrator on the front strike typewriting machine. When it is necessaryto release the scale from the paper table F is pulled forward. The spring fingers E always holds the scale lightly against the paper when the table is released.

The feed rolls I are carried on shafts I I which shafts are supported on opposite ends of the arms I. The arms I are provided with central hub like projections G which embrace transverse rods G, the apertures being considerably larger than the rods. The rods G are-connected by suitable arms G to the rock-shaft D. Springs E restagainst the hub like projections G at each end of each pair of rollers, urging the same upward- The said springs E are connected The curved por-' tion F of-thepaper table is held yieldingly by suitable screws or rivets to the downwardly projecting bar E of the typewriter carriage. By this arrangement even pressure is secured on the opposite pairs of rolls,

and no undue clamping of paper at any point is occasioned, and the rolls act evenly and deliver the paper freely therethrough. The rod G and its connections serve to generally locate theparts without confining the same and allows the feed rolls to contact freely with the platen and also to afford the means of relieving the pressure on the feed rolls through the lever secured on rockshaft D.

table is still held yieldingly in contactso that the paper can be readily adjusted beneath. the scale, although the scale is still tightly in contact with the platen. On the paper;table F are supported the guides J,

which are clamped in position by the set screw J and the clip piece J embracing the downwardly curved rear edge F of said paper table.

At the end of the platen roll is the lever I for actuating: the same and the ratchet means for retainingit', as well as the brakemechanism. The detent means consists of an arm M which is pivoted to the rod D and bears a roll M which fits into curved notches around the periphery of the-head of the platen. This arm M is urged into contact with the platen-head by the spring m, the inner end of which is secured to the bushing m An arm Ois also pivoted on the rod D and is provided with "a brake-shoe O for contacting" with the face of theplaten, the same being urged inwardly by the spring 0 the lower end of which is connected to the carriage frame opposite the head of the laten. A lever N is pivoted at n on end of t e carriage frame opposite the head of the platen and is provided with a pin N which engages suitable notches on the underside ofthe arm M and strikes into a notch on the end of the arm 0 so that by adjustment of the lever N the brake can be raised and the detent roller M brought into engagement, or both the detent roll and the brake can be brought into engagement, or the brake be-elevated and the detent roll be brought into action. In. the position illustrated in the drawing, the brake is elevated, and the detent roll M engages the platen. By, pulling the lever N one notch toward the front of the machine, both the brake and the detent pawl will be elevated and by swinging the lever one notch 125 I further forward, the detent roll M will. be elevated and the brake will be applied.

I have described my improved paper feed mechanism in the form preferred by'me but desire to state that it is capable of many variations in detail without departing from 7 ing toward the trear of the machine thence upwardly and rearwardly and thence recurved [on themselves, conforming to the front side of the platen; rollers carried by the said fingers, to rest against the platen; levers carried b the saidspring fingers on the front side of t e said U-shaped loops, connected by suitable links to the front portion of the spring-fingers, said levers being provided with irregular heads for compressing the spring to relieve the pressure on the fingers, as specified.

2. In a front strike typewriting-machine, the'combination of a carriage; a platen supported thereon, the front bar B of the carriage being provided with suitable guideways and guide-blocks clamping the said uide-ways; slotted spring-fingers clamped by the blocks of the said tending toward the rear of t e machine upwardly and recurved on themselves, conformingto the front side of the platen; levers carried by the said spring fingers on the front side of the U-shaped loops, connected by suitable links to the front portion of the s ring fingers, said levers being pro vided with heads for compressing the spring to relieve the pressure on the fingers, as specified.

3; In a front strike typewriting machine,

' thecombination of a carriage the frontbar of which is provided. with a grooved way onits upper surface anda grooved way on the under front side thereof, a suitable platen thereon; aper fingers extending forwardly from the front bar of the carriage, being recurved to roperly contact and support the aper; a 0 amp) for holding the said paper fingers adjusta ly in position, consisting of the base portion K fitting in a suitable way on the under front side of the front bar, and a to plate K with projections fitting downwar yinto the way on the 11 per side of the- "III front bar, and a set screw extending downwardly to clamp the said parts together and embrace the forwardly projecting por-.

tion of .the (paper finglers, 'ad ustably therebetween,'an permit t e sliding of the clamp on the said ways of the front bar, co-acting as specified.

4 4. In a paper feed mechapismfnr a frontstrike typewriting machine, the combination I of, ,a ican'iage; a platen; thereon; a paper uide-ways, ex-

table to the rear of said platen, extending downwardly and forwardly and conformed to the underside'of the laten; a paper scale adjustably secured to t e front edge of the said paper table, the front edge of said scale being conformed to the platen and the rear portion being curved outwardly from the platen roll and secured by suitable means consisting of screws in enlar ed slots to per mit adjustment in all directions to the said table; 0 osite pairs of feed-rolls supported on suitable frames, loosely pivoted on the central shafts G; arms G" pivotelly connected to the central shaft G; and springs E carried by the carriage and arranged to apply pressure to the central part of the said frames for applying pressure evenly to the geei rolls, co-acting for the purpose specie l v 5., In a paper feed mechanism for front strike typewriting machines, the combination of the carriage; a platen thereon; a paper table to the rear of said platen extending downwardly and forwardly and con. formed to the under side of the platen; op-' posite pairs offeed rolls arranged beneath said platen; a rigid frame carrying the said feed rolls towards each end; a shaft G centrally arranged between the said feed rolls and parallel therewith on which said frame is loosely journaled, the diameter of the bearing being considerably more than that of the shaft; arms G connected to the said central shaft; suitable means for controlling said arms; and springs. E. carried by the said carriage and arranged to apply pressure to the central partof the said rigid frame for applying pressure evenly to the feed rolls, for the purpose specified.

6. In a paper feed-mechanism for front strike ty ewriting machines, the combina tion of t e carriage; a platen thereon; op'- posite pairs of feed rolls arranged beneath said platen; a rigid frame carrying the said feed rolls towards each end; a shaft Gr cen-' trally arranged between the said feed rolls and paralleltherewith, on which said frame is loosely journaled, the diameter of the bearing being considerably more than-that of the shaft; arms G connected to the said central shaft; suitable means for controlling said arms; and springs E- carried by the said carriage and arranged to apply pressureto the central part-of the said ri 1d frame for t pplying pressure avenly to the eed rolls, for t e purpose specified.

7. In a paper feed mechanism for front strike ty ewriting machines, the combination of tfie carria e; a platenrthereon; opposite pairs of fee rolls; a rigid frame car. rying said pairs of rollsarrangedbeneath the said platen supporting and controlling ah ns for said frame having a loose pivotal connection towards the center thereof, the pivoted bearing being of greater diameter than the pivot; and springs secured to the said car table; the front edge of said scale beinpjconformed to the platen and the rear portion ever regulates the brake on the detent, so

being curved outwardly from the platen roll and secured by suitable means to the. said table, co-acting for thepurpose specified.

9. In a paper feed mechanism for a front strike typeWrit'i-ng machine, the combination of the carriage; a platen thereon; a paper tabletoj the rear of said laten extending downwardly and forward y beneath said platen and conformed to the. under side thereof; a paper scale secured to the front edge of thepaper table by set screws through enlarged slots therein,- the front edge of said scale being conformed to the platen and the rear portion being secured to the under front portion of said paper table, co-acting for the purpose specified.

10. In a front strike typewriting machine, the combination with a carriage and platen of aremovable paper table F at the rear of said platen. and extending below and beneath the same; slotted brackets f at the rear of said paper table with spring fingers f for embracing the rod D of the carriage, co-acting as specified. p

11. In a typewriting machine, the combination of the carriage supported by suitable means to reci rocate laterally across the machine, the p aten C on a suitable spindle; a bearing. bushing embracing the-spindle; a shaft parallel with the said platen; a

ratchet with curved notches on the end of 7 said platen; an arm with a detent roller to rest in the notches of said ratchet; -a spring connecting the said arm to the bushing on' projecting pin arranged to engage both'the detent arm and the brake arm at different oints, whereby the adjustment of said that both can be thrown out or both can'be ,thrown in, or they may be brought into inde endent use by the manipulation of the said ever, co-acting for the purpose specified.

12. In a typewriting machine; the combination of the carriage supported by suitable means to reci rocate laterally across the machine; the p aten C on a suitable spindle; a shaftD parallel therewith; a detent arm M with detent roller M pivoted on said shaft; a bushing m on the platen spindle; a spring m connecting the said bushing to the said detent arm; an arm with a brake ,O pivoted parallel with the detent arm, and notched at its outer end; a spring connecting the said brake farm to the frame; an operating lever N with a in to engage both. the said .detent arms an the brake arms, whereby the manipulation of said levers effects the control of said brake arms and detent arm simultaneously and separately, co-acting for the purpose specified.

InwItness whereof, I have hereuntoset my hand andseal in the presence of. two

W tnesses.

WILLIAM R. EOX. [L. s.]

' Witnesses:

KATHARI E KUNZI, CAROLINE D. WATERMAN. 

